8009191919108 has 48 divisors (see below), whose sum is σ = 14320140669744. Its totient is φ = 3918622095360.

The previous prime is 8009191919107. The next prime is 8009191919117. The reversal of 8009191919108 is 8019191919008.

It can be written as a sum of positive squares in 8 ways, for example, as 1373096491264 + 6636095427844 = 1171792^2 + 2576062^2 .

It is not an unprimeable number, because it can be changed into a prime (8009191919107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69589466 + ... + 69704462.

It is an arithmetic number, because the mean of its divisors is an integer number (298336263953).

Almost surely, 2^{8009191919108} is an apocalyptic number.

It is an amenable number.

8009191919108 is a deficient number, since it is larger than the sum of its proper divisors (6310948750636).

8009191919108 is a wasteful number, since it uses less digits than its factorization.

8009191919108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116952 (or 116950 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 56.

The spelling of 8009191919108 in words is "eight trillion, nine billion, one hundred ninety-one million, nine hundred nineteen thousand, one hundred eight".